NCERT Solutions for Class 4 Maths Chapter 1: Building with Bricks

Check NCERT Solutions for class 4 Maths Chapter 1: Building with Bricksto get easy and exclusive solutions for all questions given on different pages of Class 4 Maths NCERT Chapter 1. These NCERT solutions will help you gain in-depth understanding of each and every concept discussed in the chapter.

NCERT Solution for Class 4 Maths

Chapter 1 - Building with Bricks

NCERT Page No. 3

(a) Which pattern is made in a circle?

(b) In which pattern can you show mirror halves? Draw a line.

(c) Now you draw some new floor patterns.

Answer.

(a) Pattern (J) is made in circles.

(b) Patterns having mirror halves are shown below:

(c) Some floor patterns can be drawn as follows:

NCERT Page No. 4

How to Draw a Brick?

These are two photos of the same brick.

In one photo we can see only one of the brick. In the other we can see three faces. Circle the photo showing three faces.

Answer.

Photo showing three faces of the brick is encircled below:

(a) How many faces in all does a brick have?

(b) Is any face a square?

(c) Draw the smallest face of the brick.

(d) Which of these are the faces of a brick? Mark a (✓).

(e) Which of these is a drawing of a brick? Mark a (✓).

(f) Make a drawing of this box to show 3 of its faces.

(g) Can you make a drawing of a brick which shows 4 of its faces?

Answer.

(a) A brick has 6 faces in all.

(b) No, all the faces of a brick are rectangular in shape..

(c) The smallest face of the brick is marked inside the circle below: 

(d) Faces of a brick are marked with a tick (√) below:

(e) Drawing of a brick is marked below:

(f) Figure of the geometry box showing 3 of its faces can be drawn as below:

(g) No, it is not possible to make a drawing of a brick which shows 4 of its faces.

NCERT Page No. 5

Different Wall Patterns 

Here are photos of three kinds of brick walls. Can you see the difference in the way the bricks are placed?

Now match the photo of each wall with the correct drawing below:

Answer.

Correct match of the wall and its drawing is given below:

NCERT Page No. 6

Looking Through a Brick 'Jaali'

How many different ‘jaali‘ patterns can you see in these two photos?

Answer.

There are five different types of ‘jaali‘ patterns we can see in given two photos.

NCERT Page No. 9

(a) Have you seen arches in a bridge?

(b) Where else have you seen an arch? ______________________

Answer.

(a) Yes, I have seen arches in a bridge.

(b) We can see  arches in rainbow, tunnel etc.

NCERT Page No. 10

Jamaal and Kaalu, the masons of Jagriti School, said that their grandfathers used many different kinds of bricks. Some of these are shown in this photo.

(a) Which of these bricks have curved edges?

(b) How many faces do you see of the longest brick?

(c) Is there any brick which has more than six faces?

Answer.

(a) Bricks with curved edges are shown below:

(b) We can see two faces of the longest brick.

(c) No, there is no brick with more than 6 faces.

Find Out: The Size of a Brick

1. Take one brick and measure it.

(a) How long is it? _____________________

(b) How wide is it? _____________________

(c) How high is it? _____________________

2. Muniya wants to make a wall 1 metre long. How many bricks will she need to put in a line?______

Answer.

1. Dimensions of brick are:

(a) Length of brick = 21 cm

(b) Breadth of brick = 10 cm

(c) Height of of brick = 0.7 cm

2. Length of one brick = 21 cm

Length of required wall = 1 m = 100 cm

Bricks required to make the wall = 100/21 = 4.76

Thus, Muniya requires more than 4 bricks but less than 5 bricks to make the 1 metre long wall.

Bricks and Bricks — Hot and Fresh!

Can you guess how high is the chimney here? Is it:

(a) about 5 metres?

(b) about 15 metres?

(c) about 50 metres?

Answer.

The chimney shown in the picture is about 50 metres high.

NCERT Page No. 11

Here are four pictures from the brick kiln. These pictures are jumbled up. Look at them carefully.

Write the correct order. _______________

Answer.

The correct order of pictures is: C, D, B, A.

NCERT Page No. 12

Mental Math: Bhajan Buys Bricks 

Bhajan went to buy bricks. The price was given for one thousand bricks. The prices were also different for different types of bricks.

Bhajan decided to buy the new bricks from Brickabad. He bought three thousand bricks. How much did he pay? ____________

Guess what he will pay if he buys 500 old bricks.

Answer.

When Bhajan buys new bricks from Brickabad:

Number of new bricks bought from Brickabad = 3000

Cost of one thousand new bricks from Brickabad = Rs 2000

Cost of one new brick from Brickabad = 2000/1000 = Rs 2

Thus, cost of 3000 new bricks = Rs 2 × 3000 = Rs 6000

When Bhajan buys old bricks:

Number of old bricks Bhajan buys = 500

Cost of 1000 old bricks = Rs 1200

Cost of 500 or half of 1000 old bricks = 1200/2 = Rs 600

Students may also save these NCERT solutions as PDF so that they may use these solutions whenever required in offline mode. Link to download the solutions is given below:

Download CBSE Class 4 Maths NCERT Solutions for Chapter 1

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